Baking Soda and Vinegar Experiment Worksheet
What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.
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- 1.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a mirror (d) a funnel or spoon
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a funnel or spoon (d) a comb
- 3.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a seed (d) vinegar
- 4.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) a mirror (d) an empty bottle
- 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
- 8.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) a funnel or spoon (d) a tray for spills
- 10.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a mirror (d) a funnel or spoon
- 12.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) the amount of vinegar (d) size of the balloon
- 14.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
- 15.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
- 16.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) an ingredient ran out (d) the gas froze
- 17.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 18.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) sugar water (d) salt water
- 19.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) lemon juice (d) salt water
- 20.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
- 22.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
- 23.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 24.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) salt water (d) tamarind water
- 25.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
- 26.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 27.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they float apart (d) they react
- 28.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 29.🔍 Which is the odd one out? (a) curd (b) orange juice (c) soap solution (d) vinegar
- 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
- 31.True or false: lemon juice is an acid. (a) False (b) True
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
- 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a magnet (c) a funnel or spoon (d) an empty bottle
- 34.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
- 35.True or false: soap solution is an acid. (a) True (b) False
- 36.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
- 38.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 39.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 40.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
Answer key
- a mirror
- a comb
- vinegar
- True
- an empty bottle
- it grows bigger
- we measure it
- not needed
- a seed
- an acid
- a mirror
- a base
- size of the balloon
- True
- rinse with clean water
- an ingredient ran out
- needed
- vinegar
- lemon juice
- very little fizzing
- we keep it the same
- keep it away from eyes
- needed
- tamarind water
- carbon dioxide
- False
- they react
- True
- soap solution
- we change it
- True
- True
- a magnet
- True
- False
- an acid
- True
- not needed
- not needed
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids